Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Which catback is the loudest?

Old May 17, 2003 | 11:23 AM
  #1  
black_z's Avatar
Thread Starter
12 Second Club
iTrader: (4)
 
Joined: May 2003
Posts: 3,322
Likes: 0
From: Midwest
Default Which catback is the loudest?

I will be ordering a cat-back exhaust system soon for my 99 Z28. I like the borla, and magnaflow the best. Which one is louder? I am open to other suggestions for cat-back systems.
Reply
Old May 17, 2003 | 12:47 PM
  #2  
SSCamaro99_3's Avatar
TECH Addict
iTrader: (1)
 
Joined: Jan 2003
Posts: 2,551
Likes: 1
From: Ballwin, MO
Default Re: Which catback is the loudest?

Borla is adjustable so you will be able to make it louder. A lot of people like the Magnaflow and Hooker. Loudmouth is THE loudest, but the rasp is aa little much sometimes. True duals sound the best.
Reply
Old May 17, 2003 | 12:54 PM
  #3  
Gev's Avatar
Gev
TECH Addict
 
Joined: Mar 2002
Posts: 2,189
Likes: 0
From: Glendale, CA
Default Re: Which catback is the loudest?

The loudest catback is NO catback at all.

But the Loudmouth is a good second choice
Reply
Old May 17, 2003 | 03:44 PM
  #4  
WS6 RULES's Avatar
TECH Apprentice
 
Joined: Sep 2002
Posts: 366
Likes: 0
From: west coast
Default Re: Which catback is the loudest?

When I open up my Borla it is loud. I stay on the mid adjustment.
Reply
Old May 17, 2003 | 05:59 PM
  #5  
deviate42's Avatar
TECH Addict
20 Year Member
iTrader: (2)
 
Joined: Nov 2002
Posts: 2,210
Likes: 0
From: Houston, TX
Default Re: Which catback is the loudest?

the magnaflow isnt as aggressive as the borla. Duals will prob be the best sounding.
The loudmouth is very raw sounding, but im sure its the loudest catback.
Reply
Old May 17, 2003 | 07:41 PM
  #6  
DONAIMIAN's Avatar
TECH Senior Member
iTrader: (18)
 
Joined: Jun 2002
Posts: 10,036
Likes: 0
From: NW Houston, TX
Default Re: Which catback is the loudest?

Or GMMG. Its not as loud as LM, but its still loud, with a more refined tone to it
Reply
Old May 17, 2003 | 11:20 PM
  #7  
Hawkfish's Avatar
Launching!
 
Joined: Mar 2002
Posts: 241
Likes: 0
From: Illinois
Default Re: Which catback is the loudest?

Of the few systems that I have heard in person the Loudmouth is the loudest which is also what I have on my car.

One thing that I have noticed is that it does seem to quiet down after about 700-1000 miles from what I have heard with mine. I have no idea why it sounds quieter but it does.
Reply
Old May 17, 2003 | 11:42 PM
  #8  
Fulton 1's Avatar
TECH Junkie
iTrader: (9)
 
Joined: Dec 2001
Posts: 3,326
Likes: 0
From: WA
Default Re: Which catback is the loudest?

If you want loud and you want a cat-back then you want the Loudmouth. Personally, I'd go for a true dual, but that's not really a cat-back
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old May 18, 2003 | 10:15 PM
  #9  
2001CamaroGuy's Avatar
TECH Veteran
iTrader: (6)
 
Joined: Feb 2002
Posts: 4,766
Likes: 0
From: Phoenix, AZ USA
Default Re: Which catback is the loudest?

loud = Loudmouth (name says it all...)....put that with gutted cats and stock manifolds and I was able to set off alarms before I even go into the parking lot

the best sound though is true duals.....its not as loud but its a better sound
Reply
Old May 20, 2003 | 05:13 PM
  #10  
equandt's Avatar
TECH Resident
iTrader: (2)
 
Joined: May 2002
Posts: 756
Likes: 0
From: Wish-consin
Default Re: Which catback is the loudest?

Loudmouth is by far the loudest cat back...and the most annoying. Do a search and see how many are for sale.
Reply
Old May 20, 2003 | 05:32 PM
  #11  
B_Pay's Avatar
On The Tree
 
Joined: Oct 2002
Posts: 114
Likes: 0
From: Chicago
Default Re: Which catback is the loudest?

"One thing that I have noticed is that it does seem to quiet down after about 700-1000 miles from what I have heard with mine. I have no idea why it sounds quieter but it does."

That's from the permanent hearing loss...jk
Reply
Old May 20, 2003 | 06:01 PM
  #12  
FrankSS's Avatar
12 Second Club
20 Year Member
Photogenic
iTrader: (18)
 
Joined: Jun 2002
Posts: 1,084
Likes: 3
From: Clarksville, TN
Default Re: Which catback is the loudest?

i think the borla sounds good if you put any plate besides the large open one in it.
Reply
Old May 23, 2003 | 02:50 PM
  #13  
CRCWS6's Avatar
Teching In
 
Joined: Oct 2002
Posts: 24
Likes: 0
From: west palm beach, fl.
Default Re: Which catback is the loudest?

my friend has the magnaflow and it seems to be smooth & mellow. A certain rpm's, it changes to a blaring sound for a short time(300-400 rpms) then mellows out again. It sounds kinda cool like a 2 stage sound. Most of the guys at moroso run their borla's wide open. it has a menacing sound; raw & intimidating. The corsa cat-back is a pretty good one too. Kinda mellow but it has some ***** to it. I currently have flowmaster cat-back. With headers and no cats, it sounds great. i get compliments all the time.
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 04:51 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE